Clinical trials: Hypovitaminosis A
Vitamin Deficiency
Study of Absorption Characteristics of Two Multivitamin Mineral Formulations (Gel vs. Tablet/Capsule)
This clinical study is designed to evaluate difference in the AUC of the absorption of Multivitamin and minerals defined in the protocol
- Trial name
- NCT03146273
- Testing
- Multivitamins
- Where
- Israel
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Galilee CBR
Chronic Kidney Disease, Hyperparathyroidism, Secondary
Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency
This study will evaluate the efficacy of CTAP101 Capsules versus placebo in reducing intact parathyroid hormone (iPTH) by at least 30% from pretreatment baseline; safety and tolerability of CTAP101 will also be evaluated
- Conditions
- Chronic Kidney Disease, Hyperparathyroidism, Secondary, Vitamin D Deficiency
- Trial name
- NCT01704079
- Testing
- CTAP101 30 μg capsules, Sugar pill to CTAP101 30 μg capsules
- Where
- United States
- Volunteers
- 216 people
- Sponsor
- OPKO IP Holdings II, Inc.
X-linked Hypophosphatemia (XLH)
Treatment Patterns, Biochemical Profiles and Clinical Outcomes in Adults With X-Linked Hypophosphatemia
The purpose of this study is to better understand how X-linked hypophosphatemia (XLH) affects the body and daily life. Phosphate levels are critical in managing XLH, we aim to study how these levels change in patients taking…
- Trial name
- IBIS XLH (NCT07607600)
- Testing
- No treatment given
- Where
- 23 sites in United States, Australia and 6 more
- Sponsor
- Novo Nordisk A/S
X-Linked Hypophosphatemia
A Study to Describe the Lived Experience of XLH for Adolescents at End of Skeletal Growth
An observational, prospective, mixed-methods study involving the integration of quantitative and qualitative data exploring the lived experience of burosumab-treated adolescents with XLH at the end of skeletal growth.
- Trial name
- NCT05181839
- Testing
- Burosumab
- Where
- 14 sites in France, Germany and 3 more
- Volunteers
- 25 people
- Sponsor
- Kyowa Kirin Pharmaceutical Development Ltd
Vitamin D Deficiency
A Prospective, Single-centre, Open-label Study to Confirm the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in Adults With Vitamin D Deficiency
A Prospective, Single-centre, Open-label Study to Confirm the Efficacy and Safety of Vitamin D3 B.O.N. Intramuscular Injection in adults with Vitamin D Deficiency
- Trial name
- NCT03233295
- Testing
- Vitamin D3 B.O.N. Injection
- Volunteers
- 108 people
- Sponsor
- Kwang Dong Pharmaceutical co., ltd.
Chronic Kidney Disease, Hyperparathyroidism, Secondary
Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency
This study will evaluate the efficacy of CTAP101 Capsules versus placebo in reducing intact parathyroid hormone (iPTH) by at least 30% from pretreatment baseline; safety and tolerability of CTAP101 will also be evaluated
- Conditions
- Chronic Kidney Disease, Hyperparathyroidism, Secondary, Vitamin D Deficiency
- Trial name
- NCT01651000
- Testing
- CTAP101 30 μg capsules, Sugar pill to CTAP101 30 μg capsules
- Where
- United States
- Volunteers
- 213 people
- Sponsor
- OPKO IP Holdings II, Inc.
Chronic Kidney Disease stage3, Chronic Kidney Disease stage4
Phase 3 Safety and Efficacy Study of CTAP101 Extended-release Capsules in Children With Secondary Hyperparathyroidism
This is a phase 3, multi-center, randomized, double-blind, placebo-controlled study in children with stage 3-4 chronic kidney disease (CKD), secondary hyperparathyroidism (SHPT) and vitamin D insufficiency.
- Conditions
- Chronic Kidney Disease stage3, Chronic Kidney Disease stage4, Vitamin d Deficiency, Secondary Hyperparathyroidism
- Trial name
- NCT05543928
- Testing
- CTAP101
- Where
- 2 sites in United States
- Volunteers
- 2 people
- Sponsor
- OPKO Health, Inc.
Bariatric Surgery Candidate
Efficacy of a Novel Multivitamin-Mineral Supplement in Preventing Vitamin Deficiency in Postoperative Bariatric Patients
Approximately 33% of the US adult population can be classified as obese based on body mass index. This epidemic of obesity has resulted in over 200,000 bariatric surgeries performed every year for the treatment of "clinically…
- Trial name
- NCT01475617
- Testing
- AquaVanta Chewable Tablet, Flinstones Complete, Nature Made Calcium Softgels
- Where
- United States
- Volunteers
- 61 people
- Sponsor
- Yasoo Health
Intestinal Failure-associated Liver Disease
Prevalence of Liver Disease in Patients Dependent on Parenteral Nutrition
This is a multi-center prospective cross-sectional observational study that will assess the prevalence of liver disease in patients dependent on parenteral nutrition (PN) for 4 or more days per week.
- Trial name
- THRIVE-1 (NCT05011370)
- Where
- 15 sites in United States, Denmark and 2 more
- Volunteers
- 80 people
- Sponsor
- Protara Therapeutics
Hypophosphatasia (HPP)
A Retrospective Study of the Natural History of Patients With Severe Perinatal and Infantile Hypophosphatasia (HPP)
This study aims to characterize the natural history of patients with severe perinatal or infantile onset HPP.
- Trial name
- NCT01419028
- Where
- 12 sites in United States, Australia and 5 more
- Volunteers
- 48 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
Mild Cognitive Impairment
A Retrospective Analysis of Cerefolin NAC® in Cognitively Impaired Patients
This retrospective analysis of de-identified data from 700 charts of consecutive patients from this patient population is to investigate the prevalence of hyperhomocysteinemia and associated metabolic abnormalities in this…
- Trial name
- NCT01594541
- Where
- United States
- Volunteers
- 700 people
- Sponsor
- Pamlab, Inc.
Osteoporosis, Vitamin D Deficiency
A Study of MK0217A and Dietary Supplement in Men and Postmenopausal Women With Osteoporosis (0217A-227)
The purpose of this study is to test the safety, tolerability, and effectiveness of an investigational drug and dietary supplement to reduce the risk of vitamin D insufficiency and deficiency during treatment of osteoporosis in…
- Trial name
- NCT00092079
- Testing
- MK0217A, alendronate sodium (+) cholecalciferol / Duration of Treatment: 24 weeks
- Volunteers
- 652 people
- Sponsor
- Merck Sharp & Dohme LLC
Vitamin B12 Deficiency
A Study to See if a Combination of Vitamins That is Injected Into a Muscle is as Good and Safe as a Vitamin That is Taken by Mouth
Primary efficacy objective: To investigate the effects of a parenterally vitamin B12 combination treatment versus an oral vitamin B12 mono therapy on the vitamin B12 status in female and male patients as determined by the change…
- Trial name
- EASYVIT (NCT07029698)
- Testing
- Vitamin B12, Vitamin B6, Folic acid, Vitamin B12 (Cyanocobalamin)
- Where
- 2 sites in Ukraine
- Volunteers
- 46 people
- Sponsor
- Medice Arzneimittel Pütter GmbH & Co KG
Vitamin B 12 Deficiency
Efficacy and Safety Study of Oral Eligen® B12 in Subjects With Low Serum Cobalamin
The purpose of this study is to compare the efficacy and safety profile of a new oral vitamin B12 formulation (Eligen® B12) with intramuscular B12 in restoring normal B12 (cobalamin) concentrations in subjects with low cobalamin…
- Trial name
- NCT01312831
- Testing
- Vitamin B12 (cyanocobalamin)
- Volunteers
- 49 people
- Sponsor
- Emisphere Technologies, Inc.
Mesopic Vision, Night Vision Loss
Safety and Efficacy of 0.75% Phentolamine Ophthalmic Solution in Subjects With Post-refractive Surgery Visual Disturbances
Safety and efficacy of 0.75% Phentolamine Ophthalmic Solution to improve mesopic low contrast visual acuity in subjects with post-refractive surgery visual disturbances.
- Trial name
- LYNX-2 (NCT06349759)
- Testing
- phentolamine ophthalmic solution 0.75%, a non-selective alpha-1 and alpha-2 adrenergic antagonist
- Where
- 25 sites in United States
- Volunteers
- 200 people
- Sponsor
- Opus Genetics, Inc
Hypophosphatasia (HPP)
Retrospective, Non-interventional Natural History of Patients With Juvenile-onset Hypophosphatasia (HPP)
The purpose of this study is to characterize the natural history of HPP in patients with Juvenile-onset HPP.
- Trial name
- NCT02104219
- Where
- 19 sites in United States, Australia and 6 more
- Volunteers
- 32 people
- Sponsor
- Alexion Pharmaceuticals, Inc.
X-linked Hypophosphatemia
A Repeated Study of KRN23 in Adults With X-Linked Hypophosphatemia
The primary purpose of this study is to assess the safety and efficacy of repeated subcutaneous (SC) injections of KRN23 in adult subjects with X-Linked Hypophosphatemia (XLH).
- Trial name
- NCT01340482
- Testing
- KRN23
- Where
- 6 sites in United States, Canada
- Volunteers
- 29 people
- Sponsor
- Kyowa Kirin Co., Ltd.
Mild Cognitive Impairment, Dementia
COMPARATIVE EFFECTIVENESS OF MCI and DEMENTIA TREATMENTS IN A COMMUNITY-BASED DEMENTIA PRACTICE
This retrospective study is a more extensive, confirmatory analysis of the cognitive and functional outcomes initially seen in 2 groups of MCI/dementia patients in Springfield, MA and compares specialized dementia care and a…
- Conditions
- Mild Cognitive Impairment, Dementia, Hypoxia, Hyperhomocysteinemia
- Trial name
- NCT02860338
- Volunteers
- 900 people
- Sponsor
- Clionsky Neuro Systems Inc.
X-linked Hypophosphatemic Rickets/Osteomalacia
A Study of KRN23 in Pediatric Patients With X-linked Hypophosphatemic Rickets/Osteomalacia
Before switching to the post-marketing study: To evaluate the efficacy and safety of KRN23 administered subcutaneously once every 2 weeks in children with X-linked hypophosphatemic rickets/osteomalacia(XLH).
- Trial name
- NCT03233126
- Testing
- KRN23
- Where
- 4 sites in Japan
- Volunteers
- 16 people
- Sponsor
- Kyowa Kirin Co., Ltd.
Hypophosphatasia (HPP)
Safety and Efficacy Study of Asfotase Alfa in Severely Affected Infants With Hypophosphatasia (HPP)
This clinical trial studies the safety and efficacy of asfotase alfa in infants and young children with infantile onset HPP.
- Trial name
- NCT00744042
- Testing
- asfotase alfa
- Where
- 10 sites in United States, Canada and 2 more
- Volunteers
- 11 people
- Sponsor
- Alexion Pharmaceuticals, Inc.